body {
    font-family: "Liberation Mono", monospace;
    color: #212529;
    text-align: center;
}

.header,.body, .footer, .horizontal-line {
    width: 90%;
    margin: 0 auto;
}

.header {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    font-size: 1.2rem;
    padding: 1rem;
}

.header a {
    color: #6c757da5;
    text-decoration: none;
}

.body {
    margin: 0 auto;
    margin-bottom: 5rem;
    margin-top: 5rem;
    text-align: center;
}

.footer {
    margin: 0 auto;
    text-align: center;
}

.horizontal-line {
    text-align: center;
}

#particles-js {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
}